DAS-2426 Update varinfo config to handle TEMPO_CLDO4_L3 files (#49)

Author: flamingbear

CHANGELOG.md

@@ -4,22 +4,26 @@ The Harmony Regridding Service follows semantic versioning. All notable changes
 to this project will be documented in this file. The format is based on [Keep a
 Changelog](http://keepachangelog.com/en/1.0.0/).
 
-## [1.8.0] - 2025-09-26
+## [v1.9.0] - 2025-10-08
+
+### Added
+
+- Configuration fix the metadata in `TEMPO_CLDO4_L3` files, allowing them to be regridded.
+
+## [v1.8.0] - 2025-09-26
 
 ### Changed
 
 - Changes how implicit grids are determined. To determine the limits of an implicit grid in geographic space, each cell center and all four corners are transformed from the projected space into longitude, latitude and those values are used to determine the limits of the output grid, preventing an accidental cut off of the grid cell edges. Previously, only cell centers were used.
 
-
-## [1.7.1] - 2025-09-22
+## [v1.7.1] - 2025-09-22
 
 ### Changed
 
 - No user facing changes.
   - Updates GitHub workflow actions to allow correct release note extraction.
 
-
-## [1.7.0] - 2025-09-17
+## [v1.7.0] - 2025-09-17
 
 ### Changed
 
@@ -168,6 +172,10 @@ include updated documentation and files outlined by the
 For more information on internal releases prior to NASA open-source approval,
 see legacy-CHANGELOG.md.
 
+[v1.9.0]: https://github.com/nasa/harmony-regridding-service/releases/tag/1.9.0
+[v1.8.0]: https://github.com/nasa/harmony-regridding-service/releases/tag/1.8.0
+[v1.7.1]: https://github.com/nasa/harmony-regridding-service/releases/tag/1.7.1
+[v1.7.0]: https://github.com/nasa/harmony-regridding-service/releases/tag/1.7.0
 [v1.6.0]: https://github.com/nasa/harmony-regridding-service/releases/tag/1.6.0
 [v1.5.0]: https://github.com/nasa/harmony-regridding-service/releases/tag/1.5.0
 [v1.4.0]: https://github.com/nasa/harmony-regridding-service/releases/tag/1.4.0

docker/service_version.txt

@@ -1 +1 @@
-1.8.0
+1.9.0

harmony_regridding_service/config/HRS_varinfo_config.json

@@ -1,6 +1,6 @@
 {
   "Identification": "harmony_regridding_service_varinfo_config",
-  "Version": 5,
+  "Version": 6,
   "CollectionShortNamePath": [
     "/HDF5_GLOBAL/short_name",
     "/NC_GLOBAL/short_name",
@@ -15,7 +15,8 @@
   ],
   "Mission": {
     "ATL\\d{2}": "ICESat2",
-    "SPL[34].+": "SMAP"
+    "SPL[34].+": "SMAP",
+    "TEMPO_CLDO4_L3" :"TEMPO"
   },
   "ExcludedScienceVariables": [
     {
@@ -133,6 +134,24 @@
         }
       ],
       "_Description": "Ensure SMAP L4 variables point to the correct dimension variables in the root group."
+    },
+    {
+      "Applicability": {
+        "Mission": "TEMPO",
+        "ShortNamePath": "TEMPO_CLDO4_L3",
+	"VariablePattern": "^/(product|geolocation|support_data)/.*"
+      },
+      "Attributes": [
+        {
+          "Name": "dimensions",
+          "Value": "/time /latitude /longitude"
+        },
+	{
+          "Name": "coordinates",
+          "Value": "time latitude longitude"
+        }
+      ],
+      "_Description": "Ensure TEMPO gridded cloud fraction and pressure (O2-O2 dimer) V03 (PROVISIONAL) variables point to the correct coordinate variables in the root group."
     }
   ]
 }

harmony_regridding_service/dimensions.py

@@ -5,6 +5,8 @@
 
 from varinfo import VarInfoFromNetCDF4
 
+from .exceptions import SourceDataError
+
 
 class GridDimensionPair(NamedTuple):
     """Horizontal grid dimensions."""
@@ -71,8 +73,12 @@ def get_resampled_dimension_pairs(
     Gives a list of the 2-element horizontal dimensions that are used in
     regridding this granule file.
     """
-    return [
+    dim_pairs = [
         GridDimensionPair(*dims)
         for dims in var_info.group_variables_by_horizontal_dimensions()
         if len(dims) == 2
     ]
+    if not dim_pairs:
+        raise SourceDataError('No horizontal dimension pairs could be determined.')
+
+    return dim_pairs

tests/unit/test_dimensions.py

@@ -1,12 +1,20 @@
 """Tests the dimensions module."""
 
+from unittest.mock import Mock
+
+import pytest
+from varinfo import VarInfoFromNetCDF4
+
 from harmony_regridding_service.dimensions import (
+    GridDimensionPair,
     get_column_dims,
+    get_resampled_dimension_pairs,
     get_row_dims,
     horizontal_dims_for_variable,
     is_column_dim,
     is_row_dim,
 )
+from harmony_regridding_service.exceptions import SourceDataError
 
 
 def test_horizontal_dims_for_variable_grouped(test_IMERG_ncfile, var_info_fxn):
@@ -103,3 +111,33 @@ def test__get_row_dims_y_dims_multiple_values(test_1D_dimensions_ncfile, var_inf
 
     actual = get_row_dims(dims, var_info)
     assert expected_dim == actual
+
+
+def test_get_resampled_dimension_pairs_no_values():
+    """Test that SourceDataError is raised when no horizontal dimension pairs exist."""
+    mock_var_info = Mock(spec=VarInfoFromNetCDF4)
+    mock_var_info.group_variables_by_horizontal_dimensions.return_value = [
+        ('time',),
+        ('time', 'lat', 'lon'),
+    ]
+
+    with pytest.raises(
+        SourceDataError, match='No horizontal dimension pairs could be determined.'
+    ):
+        get_resampled_dimension_pairs(mock_var_info)
+
+
+def test_get_resampled_dimension_pairs():
+    """Test that horizontal pairs are returned."""
+    mock_var_info = Mock(spec=VarInfoFromNetCDF4)
+    mock_var_info.group_variables_by_horizontal_dimensions.return_value = [
+        ('time',),
+        ('time', 'lat', 'lon'),
+        ('x', 'y'),
+        ('lat', 'lon'),
+    ]
+
+    expected_pairs = [GridDimensionPair('x', 'y'), GridDimensionPair('lat', 'lon')]
+
+    actual_pairs = get_resampled_dimension_pairs(mock_var_info)
+    assert actual_pairs == expected_pairs